Chementator Briefs

Bio-based prepolymer

Lanxess AG (Cologne, Germany; www.lanxess.com) has recently developed a new range of methylen diphenyl diisocyanate (MDI) polyether prepolymers containing renewable, bio-based raw materials. Marketed under the brand name Adiprene Green, the products are suitable as replacement for existing fossil-based polyether prepolymers to manufacture highly durable polyurethane (PU) elastomers. Depending on the system, a reduction of CO₂ between 20 to 30% is possible compared to fossil-based prepolymers due to the use of polyether polyols based on starch. ❑